Improvement in umbrella-runners



g 2 Sheets-Sheet 1. Y T. W ovv-SON.

- Umb; jRu'nner.

" NQ.. 2'||,361. Patented 1an. 14, 1879.

NIFERS. FNOTO-LHUGRAPHER. WASHINGTON. D4 C.

rn'r if IMPROVEMENT IN uMBeELLA-RUNNERS.

Specification forming part of Letters Patent No. 2 l1,361, dated January 14, 1879; application iiled May 24, 1878; patented in England, February 19, 1878.

i To all whom. it may concern- Be it known that I, THOMAS WIDDOWSON, (of the firm of Thomas Widdowson 8U Co.,) of Sheffield, England, manufacturer, have iny ventednew and useful Improvements in Top ed in Great Britain, No. 3,971 for 1877, sealed February 19, 1878.

The objectoftheinventionis greater strength and durability in theconstruction of the parts.

In carrying the invention into effect, I take a disk of metal, of size'sufcient to produce the intended top notch or runner, as the case may be, and then, by means of dies and pressure, I `force this disk into a tubular form to the extent desired forfthe tubular portion of the part. I then cutoff the blank end thereof, and` by the aid of a spindle with a bead or projecting rim thereon, aided by a grooved roller, I raise a projecting rim on this tube, toward one end thereof', to form one side of the intended notch. I then obtain the other side of the notch bya punch and. die, so as to' form two sides or a pair of projecting rings, leaving a space or groove all round between these sides or rings to receive the wire, by which the ends of the ribs or` stretchers are afterward to be held thereto.-

The openings to receive the ends of the ribs or stretchers are then out by a saw or otherwise, as desired. The end of the tube opposite the notches for runners I turn over to form a bead, in the usual way, but that the invention may be the better understood, I will, by the aid of theaccompanyin g drawings, proceed to describe means pursued by me in carrying the same into effect.

Referring to the drawings, Figure l shows, by plan and section,'a disk of metal of size adapted to produce a runner, e. Figs.2, 3, 4,

.5, 6, 7, and 8 show, by sectional and plan views, respectively, the progressive forms of the disk of metal, Fig. 1, obtained by successive operations of dies and pressure, as is Well understood.

The dies used during these successive stages being in the main of the character of those ordinarily employed for corresponding purposes,

vI have not thought it necessary to show them.

projecting rims which are to be formed there,

from than would be the case if those parts were reduced by the punches or dies to the same thickness as the remainder of the tube.

Having produced, by successive punching operations, the tubular form represented by` Fig. S, I then cut off the blank end a3 thereof, when a tubular form of the character of that shown by the plan and section, Fig. 9, will be produced. This tubular form is then placed over a spindle, d, of the character of that represented by side view, Fig. 10, and end view, Fig. 1l, and which spindle is applied, by screwing or otherwise, into the shaft of a lathe or other suitable shaft by which quick rotary motion may be given to it. The spindle d is formed with a bead or projecting rim, d', thereto; and when a tube, a, Fig. 9, has been applied on the spindle d, and the spindle d has been set in rotary motion, a roller, c, (shown by side view, Fig. l2, and end view, Fig. 18,) carried by its spindle c2 in the fork of a leverarm, is caused to bear with pressure on the tube a as that tube is carried round by the spindle d, when the action of the groove el,

formed around the roller e, bearing with force on the external surface of the tube a, together with the internal pressure of the bead or rim d', will produce a projecting rim, b, on the tube a of the character of that represented by Fig. 14, and, if desired, a succession of spindles, d, and'rollers e, with variations in form or extent of bead or rim d and groove el, may be employed. In all cases the diameter of the bead or rim d will have to be somewhat smaller than the interior of the body of the tube to be operated upon. f is an enlargement acting as a stop on thespindle d, adapted to the length of tube a for the time under operation. The rollers e may also be variable in width to correspond.

A tube, a, produced to a formsomewhat as represented by Fig. 14, by the means thus described or by other suitable means, is then placed with its longer end, a, in a bottom die, g, (shown by section, Fig. 15, and by plan view, Fig. 16,) and With its projection b resting on the upper edge, g', of the bore thereof, When the end c2 of the tube a will first be operated upon by the conical end 7L of a punch, h, (shown by end view, sectional view, and side views, Figs. 17, 18, and 19,) so as to produce a'somewhat open or bell mouth to that end a2, and by the collare' to compress the part b, as indicated by Fig. 20, and by the use of another upper die, j, provided with a collar, 7c, capable of movement as indicated by the dotted lines 7st, to release the tube c when acted upon as desired, and represented by side view and plan, Figs. 21 and 22, in connection with the bottom die,

Fig. 15, and by the internal support, m, formed to the base or supporting block shown by plan and side views, Figs. 23 and 24. The end a2 ot' the tube a is further acted upon so as to turn down the enda2, and thereby to form, a rim,c, which, with the bead or projection b, forms a pair of rims, as represented by Fig. 25, with a space between them for the Wire, as is Well understood.

The rim c, it will be observed, is a single thickness of metal, While the bead b is of a double thickness or corrugation. The material from-Which the flaring or bell-shaped rim c is formed is greater, however, in thickness than that from which the bead b is formed, in order that this outer part, which Ais unsupported and not strengthened by corrugation, shall have sufficient rigidity and strength to meet all the demands to be made upon it when 1n use.

The several-portions a, al, and a2 of the tube, while of different relative thicknesses, are each severally uniform in their thickness, as distinguished from a gradually tapering or diminishing thickness, such as is sometimes the case iny the manufacture of cartridges, but Which Would not be desirable or practicable in umbrella top notches or runners. rIhe collar k is acted upon by a lever or otherwise to give motion to it and push the runner or notch from the part j. The openings l, Fig. 26, in these rims b c, to receive the ends of the ribs or stretehers, are then cut by a saw or other- Wise, as desired.

The end a4 ot' the tube a, opposite that for the notches, I turn over to form a bead in the usual way. The top notches (represented by Figs. 27 and 28) are similarly produced.

In operating on the metal to produce the successive results referred to it will be understood that the metal will be annealed, as usual, when required.

Have thus described myY invention, and means which I adopt in carrying the same into effect, what I claim is l. A tube for top notches or runners of uinbrellas and parasols, having themetal at the Vpart al lthicker than the part a, and that at a2 thickerthan the part al, substantially as shown and described, and for the purposes set forth.

2` The improved top notch or `runner described, having the metal of the beaded part b of greater thickness than that of the part a, and doubled or corrugated, and that of the part c otistill greater thickness, and turned outward to form a rim, substantially as shown and described.

In testimony Wh ereof l have signed my name to this specification in the presence of two subscribing Witnesses.

THOMAS WIDDOWSON. Witnesses: v

W. E. TATTERsI-IALL, Notary Public, ShcieZcl.

J. S. C. HORRY, Slleicld, Clerk t0 im'. lV. Il. Tattershall. 

